Edexcel Biology 6Watch
how did u all describe the graph
A roundabout answer I know but is it strictly wrong?
i thought the q on ammonia was really hard - didn't get time to think it through properly, put some crap about site directed inhibition etc, or low pH caused by ammonium chloride - but i think it might have been end product inhibition???
On the unit 5 paper, 2nd Q - about finches, i learnt that density independent factors are abiotic - i.e. rainfall, but didn't feel the graph supported this.
And why were the 2 marks for saying just one other use of gibberelins?? i felt that about a lot of the Q's that there were often more marks then points that were being asked to be made.
the finches question i wrote density dependent, as in the the anual rainfall controled the population of finches...basic comman sense really....
Also, I think that glucagon converts glycogen to glucose in order to raise the blood sugar level..it's insulin that is secreted in order to lower the blood sugar.
And rainfall is an abiotic, density independent factor.....the amount of rain is not affected by the number of finches!!